linux-kernel - arch/csky/mm/tcm.c:14:2: error: #error "You should define DTCM_RAM

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Message-ID: <202105150718.cdDLUzFD-lkp@intel.com>
Date:   Sat, 15 May 2021 07:08:23 +0800
From:   kernel test robot <lkp@...el.com>
To:     Guo Ren <guoren@...ux.alibaba.com>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: arch/csky/mm/tcm.c:14:2: error: #error "You should define
 DTCM_RAM_BASE"

Hi Guo,

First bad commit (maybe != root cause):

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   25a1298726e97b9d25379986f5d54d9e62ad6e93
commit: 18c07d23da5a48525b2955aa269b8bb108c19300 csky: Fixup calltrace panic
date:   1 year ago
config: csky-randconfig-r036-20210515 (attached as .config)
compiler: csky-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=18c07d23da5a48525b2955aa269b8bb108c19300
        git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
        git fetch --no-tags linus master
        git checkout 18c07d23da5a48525b2955aa269b8bb108c19300
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross W=1 ARCH=csky 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

>> arch/csky/mm/tcm.c:14:2: error: #error "You should define DTCM_RAM_BASE"
      14 | #error "You should define DTCM_RAM_BASE"
         |  ^~~~~
   arch/csky/mm/tcm.c:109:7: warning: no previous prototype for 'tcm_alloc' [-Wmissing-prototypes]
     109 | void *tcm_alloc(size_t len)
         |       ^~~~~~~~~
   arch/csky/mm/tcm.c:124:6: warning: no previous prototype for 'tcm_free' [-Wmissing-prototypes]
     124 | void tcm_free(void *addr, size_t len)
         |      ^~~~~~~~


vim +14 arch/csky/mm/tcm.c

f525bb2c9e7cf1 Guo Ren 2019-11-27  11  
f525bb2c9e7cf1 Guo Ren 2019-11-27  12  #ifdef CONFIG_HAVE_DTCM
f525bb2c9e7cf1 Guo Ren 2019-11-27  13  #if (CONFIG_DTCM_RAM_BASE == 0xffffffff)
f525bb2c9e7cf1 Guo Ren 2019-11-27 @14  #error "You should define DTCM_RAM_BASE"
f525bb2c9e7cf1 Guo Ren 2019-11-27  15  #endif
f525bb2c9e7cf1 Guo Ren 2019-11-27  16  

:::::: The code at line 14 was first introduced by commit
:::::: f525bb2c9e7cf1e3c43ab57704c9e1c836d30b34 csky: Tightly-Coupled Memory or Sram support

:::::: TO: Guo Ren <guoren@...ux.alibaba.com>
:::::: CC: Guo Ren <guoren@...ux.alibaba.com>

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org

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